Home / 510,664,511.80-765,996,767.70-252,384,185.80

Finding the Fourth Proportional to 510,664,511.80, 765,996,767.70 and 252,384,185.80

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Solution

The fourth proportional to 510,664,511.80, 765,996,767.70 and 252,384,185.80 is: 378,576,278.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,664,511.80 : 765,996,767.70 = 252,384,185.80 : x
  2. Step 2: Convert to fraction form
    510,664,511.80/765,996,767.70 = 252,384,185.80/x
  3. Step 3: Cross multiply
    510,664,511.80x = 765,996,767.70 × 252,384,185.80
  4. Step 4: Simplify right side
    510,664,511.80x = 193,325,470,541,396,256
  5. Step 5: Solve for x
    x = 193,325,470,541,396,256/510,664,511.80
  6. Step 6: Final answer
    x = 378,576,278.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.